Viewing archive of lördag, 5 april 2008
Solaktivitetsrapport
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport för sol- och geofysisk aktivitet 2008 Apr 05 2203 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 096 publicerat klockan 2200Z på 05 Apr 2008IA. Analys av solfläcksgrupper och solaktivitet från 04-2100Z till 05-2100Z Solar activity was very low. Spotless plage Region 989
(S11W67) produced an isolated low-level B-class flare. SOHO/LASCO
images showed a halo CME, first visible in C2 at 05/1626Z. The CME
appeared to be from the back side, based on STEREO Ahead EUVI 195
images and the GOES- 10 X-ray signature. No new active regions were
numbered.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low.
IIA. Sammanfattning av geofysisk aktivitet 04-2100Z till 05-2100Z
Geomagnetic field activity ranged from quiet to major storm levels
with a Kp = 6 observed during 05/1500 - 1800Z. ACE measurements
indicated Earth entered a fast solar wind flow from a recurrent
low-latitude coronal hole in the southern hemisphere. Solar wind
velocities increased during the period with a peak of 671 km/sec
detected at 05/1634Z. IMF Bz reached a minimum of -7 nT at 05/1441Z.
The greater than 2 MeV electron flux at geosynchronous orbit briefly
reached high levels during the period.
IIB. Prognos för geofysisk aktivitet
Geomagnetic field activity is
expected to be at unsettled to minor storm levels on day 1 (06
April) with major storm levels possible at high latitudes. Activity
is expected to decrease to unsettled to active levels during days 2
- 3 (07 - 08 April) as coronal hole effects persist.
III. Chans för solutbrott från 06 Apr till 08 Apr
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 05 Apr 071 Prognoserat 06 Apr-08 Apr 070/070/070 90 Day Mean 05 Apr 073
V. Geomagnetiskt A-index
Observerad Afr/Ap 04 Apr 008/011 Förväntat Afr/Ap 05 Apr 015/025 Prognoserat Afr/Ap 06 Apr-08 Apr 012/020-010/012-010/012
VI. Chanser för geomagnetisk aktivitet från 06 Apr till 08 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 25% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 30% | 30% |
| Små stormförhållanden | 25% | 10% | 10% |
| Svåra stormförhållanden | 05% | 01% | 01% |
All times in UTC
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